Cervical collar strengthening apparatus



FIG. 1 is a front, perspective view of the cervical collar strengthening apparatus of the present invention showing my new design;

FIG. 2 is a right side view thereof, the left side view being a mirror image of the right side view;

FIG. 3 is a front perspective view thereof;

FIG. 4 is a rear perspective view thereof; and,

FIG. 5 is a bottom perspective view thereof. 

The ornamental design for a cervical collar strengthening apparatus, as shown and described. 